syzbot


INFO: task hung in copy_process

Status: auto-closed as invalid on 2019/10/25 08:48
Reported-by: syzbot+1f6cad35aa03f5f82053@syzkaller.appspotmail.com
First crash: 1151d, last: 1147d
similar bugs (7):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in copy_process 1 784d 784d 0/1 auto-closed as invalid on 2020/08/29 04:01
upstream INFO: task hung in copy_process (2) 1 1150d 1150d 0/22 closed as invalid on 2019/05/08 13:05
android-414 INFO: task hung in copy_process (2) 1 964d 964d 0/1 auto-closed as invalid on 2020/03/02 19:22
upstream INFO: task hung in copy_process 2 1240d 1385d 0/22 closed as dup on 2018/09/08 14:03
linux-4.19 INFO: task hung in copy_process (2) 1 206d 206d 0/1 auto-closed as invalid on 2022/03/30 21:31
android-49 INFO: task hung in copy_process 1 1178d 1171d 0/3 auto-closed as invalid on 2019/09/30 05:31
android-414 INFO: task hung in copy_process 2 1093d 1171d 0/1 auto-closed as invalid on 2019/10/25 13:42

Sample crash report:
INFO: task syz-executor.3:12651 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D29096 12651   7008 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12657 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D28840 12657  12651 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12681 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D28864 12681  12656 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12701 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D29488 12701  12657 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12720 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D29144 12720  12651 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12734 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D29304 12734  12654 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12762 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D29288 12762  12703 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12775 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D29288 12775  12698 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12782 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D29464 12782  12666 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff
INFO: task syz-executor.3:12785 blocked for more than 140 seconds.
      Not tainted 4.14.116 #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D29096 12785  12729 0x00000000
Call Trace:
 context_switch kernel/sched/core.c:2807 [inline]
 __schedule+0x7be/0x1cf0 kernel/sched/core.c:3383
 schedule+0x92/0x1c0 kernel/sched/core.c:3427
 __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:572 [inline]
 rwsem_down_write_failed+0x5cd/0xbe0 kernel/locking/rwsem-xadd.c:601
 call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 __down_write arch/x86/include/asm/rwsem.h:126 [inline]
 down_write+0x53/0x90 kernel/locking/rwsem.c:56
 i_mmap_lock_write include/linux/fs.h:470 [inline]
 dup_mmap kernel/fork.c:681 [inline]
 dup_mm kernel/fork.c:1199 [inline]
 copy_mm kernel/fork.c:1253 [inline]
 copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
 copy_process kernel/fork.c:1570 [inline]
 _do_fork+0x19e/0xce0 kernel/fork.c:2058
 SYSC_clone kernel/fork.c:2168 [inline]
 SyS_clone+0x37/0x50 kernel/fork.c:2162
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x200003ca
RSP: 002b:00000000000002f0 EFLAGS: 00000287 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000009 RCX: 00000000200003ca
RDX: c5badefbcd4c4e2a RSI: 00000000000002f0 RDI: 0000000000000003
RBP: 0000000000000077 R08: 0000000000000005 R09: 0000000000000006
R10: 0000000000000007 R11: 0000000000000287 R12: 000000000000000b
R13: 000000000000000c R14: 000000000000000d R15: 00000000ffffffff

Showing all locks held in the system:
1 lock held by khungtaskd/1009:
 #0:  (tasklist_lock){.+.+}, at: [<ffffffff81488bf8>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4541
2 locks held by rsyslogd/6839:
 #0:  (&mm->mmap_sem){++++}, at: [<ffffffff81299a9a>] __do_page_fault+0x2ca/0xb80 arch/x86/mm/fault.c:1354
 #1:  (&ei->i_mmap_sem){++++}, at: [<ffffffff81c40dbb>] ext4_filemap_fault+0x7b/0xb0 fs/ext4/inode.c:6136
2 locks held by cron/6882:
 #0:  (&mm->mmap_sem){++++}, at: [<ffffffff81299a9a>] __do_page_fault+0x2ca/0xb80 arch/x86/mm/fault.c:1354
 #1:  (&ei->i_mmap_sem){++++}, at: [<ffffffff81c40dbb>] ext4_filemap_fault+0x7b/0xb0 fs/ext4/inode.c:6136
2 locks held by getty/6962:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6963:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6964:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6965:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6966:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6967:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
2 locks held by getty/6968:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff861cb693>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff831159b6>] n_tty_read+0x1e6/0x17b0 drivers/tty/n_tty.c:2156
1 lock held by syz-fuzzer/6985:
 #0:  (&mm->mmap_sem){++++}, at: [<ffffffff81810af9>] SYSC_madvise mm/madvise.c:827 [inline]
 #0:  (&mm->mmap_sem){++++}, at: [<ffffffff81810af9>] SyS_madvise+0x1b9/0x1350 mm/madvise.c:791
2 locks held by syz-fuzzer/6998:
 #0:  (&mm->mmap_sem){++++}, at: [<ffffffff81299a9a>] __do_page_fault+0x2ca/0xb80 arch/x86/mm/fault.c:1354
 #1:  (&ei->i_mmap_sem){++++}, at: [<ffffffff81c40dbb>] ext4_filemap_fault+0x7b/0xb0 fs/ext4/inode.c:6136
2 locks held by syz-fuzzer/7000:
 #0:  (&mm->mmap_sem){++++}, at: [<ffffffff81299a9a>] __do_page_fault+0x2ca/0xb80 arch/x86/mm/fault.c:1354
 #1:  (&ei->i_mmap_sem){++++}, at: [<ffffffff81c40dbb>] ext4_filemap_fault+0x7b/0xb0 fs/ext4/inode.c:6136
1 lock held by syz-executor.3/7008:
 #0:  (&mm->mmap_sem){++++}, at: [<ffffffff81299a9a>] __do_page_fault+0x2ca/0xb80 arch/x86/mm/fault.c:1354
3 locks held by syz-executor.3/12650:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
4 locks held by syz-executor.3/12651:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] i_mmap_lock_write include/linux/fs.h:470 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mmap kernel/fork.c:681 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mm kernel/fork.c:1199 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_mm kernel/fork.c:1253 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12652:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12654:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12656:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
4 locks held by syz-executor.3/12657:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] i_mmap_lock_write include/linux/fs.h:470 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mmap kernel/fork.c:681 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mm kernel/fork.c:1199 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_mm kernel/fork.c:1253 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12659:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
4 locks held by syz-executor.3/12664:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] i_mmap_lock_write include/linux/fs.h:470 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mmap kernel/fork.c:681 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mm kernel/fork.c:1199 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_mm kernel/fork.c:1253 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12666:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12667:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12668:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12669:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12670:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12671:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12672:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12673:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12674:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12676:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12677:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12678:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12679:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12680:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
4 locks held by syz-executor.3/12681:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] i_mmap_lock_write include/linux/fs.h:470 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mmap kernel/fork.c:681 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mm kernel/fork.c:1199 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_mm kernel/fork.c:1253 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12682:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12683:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
4 locks held by syz-executor.3/12684:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] i_mmap_lock_write include/linux/fs.h:470 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mmap kernel/fork.c:681 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] dup_mm kernel/fork.c:1199 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_mm kernel/fork.c:1253 [inline]
 #3:  (&mapping->i_mmap_rwsem){++++}, at: [<ffffffff81371ed7>] copy_process.part.0+0x4147/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12685:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12686:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12687:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12688:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12689:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mmap kernel/fork.c:616 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] dup_mm kernel/fork.c:1199 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_mm kernel/fork.c:1253 [inline]
 #2:  (&mm->mmap_sem/1){+.+.}, at: [<ffffffff81371a95>] copy_process.part.0+0x3d05/0x6950 kernel/fork.c:1755
3 locks held by syz-executor.3/12690:
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mmap kernel/fork.c:606 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] dup_mm kernel/fork.c:1199 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_mm kernel/fork.c:1253 [inline]
 #0:  (&dup_mmap_sem){.+.+}, at: [<ffffffff81371a3f>] copy_process.part.0+0x3caf/0x6950 kernel/fork.c:1755
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mmap kernel/fork.c:607 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] dup_mm kernel/fork.c:1199 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_mm kernel/fork.c:1253 [inline]
 #1:  (&mm->mmap_sem){++++}, at: [<ffffffff81371a5b>] copy_process.part.0+0x3ccb/0x6950 kernel/fork.c:1755

Crashes (4):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2019/05/04 11:30 linux-4.14.y 6d1510d86ef6 d28f4ce5 .config log report
ci2-linux-4-14 2019/05/03 15:31 linux-4.14.y 1c046f373132 1bfa09b9 .config log report
ci2-linux-4-14 2019/05/02 16:33 linux-4.14.y 1c046f373132 1852eb18 .config log report
ci2-linux-4-14 2019/04/30 02:16 linux-4.14.y fa5941f45d7e b617407b .config log report